Work driver for car-wheel lathes



Nov. 6, 1928.

M. W. SHELH-OUSE WORK DRIVER FOR CAR WHEEL LATHES Filed May 15, 1926 INVENTOH 771.71 SAM/mu 1M ATTORIWE) Patented Nov. 6, 1928.

unrrro STATES MAURroE w. sHELHoUsn, or HAMILTON, oHIdAssrGNon To NILESPIBEMENTTOND CGMPANY, or NEW YORK, N.

.A CORFORATION OF NEW JERSEY.

VVOIRK server. reenlistment LAT-HES.

Application. filed May 1-5,

on of different diameters.

Another object of the invention is to provide a resilient holding means for r aming comprising a T bolt and a nut thereon,a space between the nut and the work driver, prefer ably surroundingthe T bolt, being provided for a suitable coiled springso that the work driver is resilientlypressed against the face plate with an adjustable pressure; 7

Another object of the invention is to pro vide clamping means, preferably associated with the T bolt, so that at any time the work driver may be held permanently in fixed position by the operation of a clamping screw.

l Vith these and other objects in view, my invention consists in the features of construction and operation set forth in the following specification and illustrated in the accom p anyinp; drawings.

In the acconupanying drawingannexed hereto and forming a .part'of this specification, I have shown my invention embodied in a work driver for car wheel lathes, but it will be understood that the invention can be 7 otherwise embodied and that the drawings In the above mentioned drawings, I have shown but one embodiment of the invention which is now deemed preferable, but it is to be understood that changes and modifications may be made within the scope of the appended claims without departing; from the spirit of the invention.

Briefly, and in its broadest aspect, my invention comprises the following principal parts: First, a bracket adapted to be mount- 1926. Serial to. 109,393.

ed upon the face plate of lathe; second, a work driver having a work engaging surface adjustably mountedthe :on; third, bolts adapted to enter slots within theface plate and passing through parts of the bracket; fourth, nuts mounted on the T slots; fifth, springs interposed between the nuts and the T bolts; and sixth. clampin screws preferably passing through the T bolts and engaging the lower surfaces of the slots in the face plate.

Referring more in detail to the figures of the drawing, I show a portion of a face plate 10 on which is mounted a work driver comprising a bracket '11. It will be understood that a plurality of these brackets 11 will be mounted in spaced positions about the face plate 10 so that they may engage and drive work mounted in the lathe on which'the face plate is provided. In order that the workdriver 11 may be adapted for dilfere 1t types of car wheels, which are of widely differinp; diameters, the bracket 11 is made adjustable across the face of the face plate 10. For this purpose radial slots 12 are provided, one for each of the brackets 11 and into which a projection 13 formed on the bracket 11 is adapted to extend. 'On either side of this slot lQ'and extendingparallelly therewith are T slots 1 .t into whichare inserted T bolts 15. These T bolts 15 pass through suitable openings 16 at the base of thje bracket 11 ant at their outer ends are provided with nuts 1'2", preferably of the form shown and having wrench engaging openings 18 so that they may be readily adjusted. Between the nuts 17 and the bracket 11, disposed so that they will normally resiliently force the bracket 11 toward the face plate 10, are coiled springs 19 closely surrounding theT bolts 15. By this means it will be seen that the nuts 17 can be adjusted to compress the springs 19 sufii'ciently to normally retain the bracket 11 in any adjusted position but so that the bracket 11 may readily'be manually. *djusted radially without disturbing the adjustmentof the T bolts 15 and nuts 17. Also it will be seenthat as the driving force during operati'o'nis normal to the slots 12 in the face plate 10, no additional pressure will be brought upon the T bolts 15 and nuts 1'4 to vary their adjustment.

In order to clamp the bracket 11 in fixed position upon the face plate 10 if desired, a clamping screw is provided for each of the "a bolts to, preferably extending directly through these T bolts and adapted toengage the lower surface of the T slots 14 in the face plate 10. It will beseen, therefore, that-by simply turnmgthe clamping screw to force its lower end against tne lower surface of the T slot 1 the T bolt 15 wlll be.

7 forced against theupper portion of the slot 1i and thus securely clamp the T bolt 15 and bracket 11 in fixed position.

lVithin the bracket 11' is the work driver 21 havingse ticns on its outer end surface. This is spring pressed toward one-side of the bracket by means of a spring To sup; port the driver 21 and permit adjustment or thed iver 2i inward and outward of the bracket, a' member 23 is slidably mounted within the bracket andhas at its outer end a bevelled surface adapted to contact with the lower correspondingly bevelled surface .of the work drii'er 21. 7 her 23 a screw is provided enteringa por- To adjust the memticn of the bracket 11 and bearing against the inneriend of the member 23. Rotation of the screw 2% will thereforeforce the member 23 outward or permit it to move inward.

To secure the screw 24 inany posit-ion of ad justment a check nut 255$ provided on the screw 2%. i

That I claim is: i

1. A work driver for lathes comprising in combination, a face plate, a bracket adjustably mounted on said face plate, a work engaging aw adjustable on said bracket, gu ding means for said bracket permittingradial movement of said bracket on said face plate,

retaining means therefor, movable with said bracket, andresilient'means. interposed in said retaining means permitting manual'adjustment of said bracket along said guiding means when the retaining means are released.

'2. Awork driver for lathes comprising in combmat1on, a face plate, a bracket adjust? ably mounted on said face plate,.a work engagingj aw adjustable on said bracket, guidingmeans for said bracket permitting radial 'movement of said bracket on saidface plate,

T bolts entering said face plate and passing through said bracket, and resilient means on said T'bolts permitting manual adjustment of said bracket along Saidguiding means when said T bolts are in unclamped position.- 3. A work driver for lathes compris ng Jil' combination, a face plate, a bracket onsaid face plate, a work engaging jaw adjustable on said-bracket, guiding means for said bracket on said face plate, bolts securingsaid bracket to said face-plate. nuts adjustable on said bolts, and springs interposed between said nuts and said bracket, whereby said esa-59s bracket may be readily and manually adj usted along said guiding means when said nuts are in unclamped position upon their bolts. 4. A work driver for lathes comprising in combination, a face plate, a bracket on said face plate a work en 'a 'in aw ad'ustable I i .n a be von said bracket, guiding means for said bracket on said face plate, bolts securing said bracket to said face plate, nuts ad ustable on said bolts, springs interposed between said nutsand said bracket. whereby said bracket may be manually adjusted when said nuts are in unclamped position on said bolts, and

screws adapted to secure said bracket fixedly to said face plate.

5. A workdriver for lathes comprising in combination, a face plate, a bracket on said face plate, a work engaging jaw adjustable on said bracket, guiding means for said bracket on said face plate, bolts securing said bracket to said face plate, nuts adjustable .onsaid bolts, springs interposed betweensaid nuts:

and said bracket, and screws passing through said bolts and adapted to secure said bracket fixedly to said face plate.

6'. A work driver for lathes comprising in combination, a face plate having 'T slots therein, a bracket on said face plate, a work engaging awadjustable on said .bracket,

' guiding means for said bracket on said face plate, bolts extending within said T slots in said face plate and adapted to secure said bracket to said-face plate, nuts' adjustable on i said bolts, springs interposed between said nuts and said bracket, and screws extending through said bolts and adapted to engage the lower surface of said T slots, whereby said plate, bolts extending withinsaid T slots in face plate and adapted to secure said a bracket to said face plate, nuts adjustable on said bolts, springsinterposed between said nutsand said bracket, and screws extending through said bolts and adapted to engage the lower surface of said T slots, whereby said bracket may besfixedly secured'to said fac plate. Y I I g In testimony whereof, I hereto my Si nature; a I

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